>1U6C_1|Chain A|(2S,3S)-N6-(2,3,4-trihydroxybutyl)-2'-deoxyadenosyl DNA adduct of butadiene diol epoxide| CGGACAAGAAG >1U6C_2|Chain B|(2S,3S)-N6-(2,3,4-trihydroxybutyl)-2'-deoxyadenosyl DNA adduct of butadiene diol epoxide| CTTCTTGTCCG